About: Acclimation of Norway spruce photosynthetic apparatus to the combined effect of high irradiance and temperature

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Diurnal courses of photosynthetic parameters, chlorophyll fluorescence and de-epoxidation state of xanthophyll cycle pigments (DEPS) were measured during the acclimation of spruce seedlings to regimes simulated cold cloudy days (LI treatment), cold sunny days (HI), and hot sunny days (HI-HT). Acclimation to HI and HI-HT led to a strong depression in CO2 assimilation (AN), particularly during noon and afternoon. Insufficient stomatal conductance was the main reason of reduced AN. Negligible changes in maximum photochemical efficiency of photosystem (PS) II support the resistance of spruce against PSII photoinhibition. The HI plants had higher content of xanthophyll cycle pigments (VAZ) and enhanced efficiency of thermal energy dissipation (D) that correlated with DEPS. In contrast, HI-HT plants had significantly lower D and DEPS values than HI plants. These results indicate a minor role of the xanthophyll-mediated thermal dissipation in PSII photoprotection under elevated temperatures. Diurnal courses of photosynthetic parameters, chlorophyll fluorescence and de-epoxidation state of xanthophyll cycle pigments (DEPS) were measured during the acclimation of spruce seedlings to regimes simulated cold cloudy days (LI treatment), cold sunny days (HI), and hot sunny days (HI-HT). Acclimation to HI and HI-HT led to a strong depression in CO2 assimilation (AN), particularly during noon and afternoon. Insufficient stomatal conductance was the main reason of reduced AN. Negligible changes in maximum photochemical efficiency of photosystem (PS) II support the resistance of spruce against PSII photoinhibition. The HI plants had higher content of xanthophyll cycle pigments (VAZ) and enhanced efficiency of thermal energy dissipation (D) that correlated with DEPS. In contrast, HI-HT plants had significantly lower D and DEPS values than HI plants. These results indicate a minor role of the xanthophyll-mediated thermal dissipation in PSII photoprotection under elevated temperatures. (en)
Title	Acclimation of Norway spruce photosynthetic apparatus to the combined effect of high irradiance and temperature Acclimation of Norway spruce photosynthetic apparatus to the combined effect of high irradiance and temperature (en)
skos:prefLabel	Acclimation of Norway spruce photosynthetic apparatus to the combined effect of high irradiance and temperature Acclimation of Norway spruce photosynthetic apparatus to the combined effect of high irradiance and temperature (en)
skos:notation	RIV/67179843:_____/10:00358656!RIV12-AV0-67179843
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA522/07/0759), P(GP522/07/P246), Z(AV0Z60870520)
http://linked.open...iv/cisloPeriodika	8
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Urban, Otmar
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Centrum výzkumu globální změny AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	245177
http://linked.open...ai/riv/idVysledku	RIV/67179843:_____/10:00358656
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	diurnal courses; picea abies; thermal acclimation; thermal energy dissipation; xanthophyll cycle (en)
http://linked.open.../riv/klicoveSlovo	thermal acclimation xanthophyll cycle diurnal courses thermal energy dissipation picea abies
http://linked.open...odStatuVydavatele	PT - Portugalská republika
http://linked.open...ontrolniKodProRIV	[77E5CF934130]
http://linked.open...i/riv/nazevZdroje	Journal of Plant Physiology
http://linked.open...in/vavai/riv/obor	ED
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	Acclimation of the Norway spruce photosynthetic apparatus to changes of incident solar radiation Non-radiative dissipation of excitation energy in relation to organization of pigment-protein complexes in photosynthetic apparatus of higher plants
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	167
http://linked.open...iv/tvurceVysledku	Urban, Otmar Kalina, J. Vrábl, D. Podolinská, J. Špunda, V. Štroch, M.
http://linked.open...ain/vavai/riv/wos	000278019200002
http://linked.open...n/vavai/riv/zamer	Spatial and functional dynamics of biological, ecological and socio-economic systems interacting with global climatic change
issn	0176-1617
number of pages	9 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.jplph.2009.11.011
is http://linked.open...avai/riv/vysledek of	Acclimation of Norway spruce photosynthetic apparatus to the combined effect of high irradiance and temperature Acclimation of Norway spruce photosynthetic apparatus to the combined effect of high irradiance and temperature

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